Journal of Beijing University of Posts and Telecommunications

  • EI核心期刊

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2005, Vol. 28 ›› Issue (3): 23-25.doi: 10.13190/jbupt.200503.23.duhf

• Papers • Previous Articles     Next Articles

An Optimal Power Control Algorithm for VBLAST System

DU Hongfeng,ZHAO Chenglin,JIANG Ting,ZHOU Zheng   

  1. School of Telecommunication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Online:2005-06-28 Published:2005-06-28

Abstract:

Based on the investigation of adaptive modulation issue for vertical Bell lab layered space time (VBLAST) system in time varying channels, a novel power control algorithm is proposed, which is called average power control. By controlling the transmitting power of adjacent time slots on a whole, the algorithm can improve the power usage by 10 percent, and enhance the performance of the system at about 05?dB at the same time.

Key words: multiple input multiple out, vertical Bell lab layered space time, power control, adaptive modulation

CLC Number: